1.   Dental sandblasting is used most often to clean out small cavities without taking any healthy tissue.

2.   The panel recommended to the FDA that the laser system not be approved for eliminating the decay that causes small cavities.

3.   The tiny laser directs a vertical laser beam on individual cells as they are pushed into a small cavity by a micropump.

4.   Many wept as they sat in small cavities in the debris, their heads lowered between their knees.

5.   On Saturday, they used explosives to enlarge that small cavity to speed the release of water from the cave, Gehain said.